FOUNDING PRODUCT ENGINEER

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At GrowthX, we design growth systems that integrate AI automation and expert guidance to help marketing teams with content creation, distribution, and conversion.
Since starting in May, we’ve hit seven-figure annual revenue in just five months, grown by double digits month-over-month, and teamed up with incredible partners like Reddit, Ramp, and HeyGen to drive their growth.
About the role We are seeking a Senior or higher full-stack developer with a strong product mindset and high standards for user interface design.
Our stack includes React (TypeScript with Tailwind/Shadcn) and Ruby on Rails (Rails experience is a plus but not required).
As our first product engineer, you’ll take the reins of our internal platform, which supports everything from SEO tools to AI-powered text editing.
You'll be sharing the codebase with our CTO, and setting the foundation for a team we plan to grow in the first quarter of next year.
Being an AI-native company, we expect every team member to embrace AI to boost productivity.
Familiarity with tools like Cursor or Windsurf is essential, and we’re excited for you to help us push the boundaries of what’s possible.
This is a fully remote role, but we do ask for at least 4 hours of overlap with US Pacific Time—during reasonable work hours.
What You'll Do Collaborate with the services and technical teams to design and deliver full stack solutions supporting clients and internal teams.
Build and maintain features using React (TypeScript) and Ruby on Rails, enhancing internal workflows and tools.
Turn ideas from whiteboard sketches into fully functional, production-ready features with high-quality UX.
Use tools like Cursor to accelerate development, streamline maintenance, and optimize workflows.
Focus on creating intuitive and visually appealing interfaces that deliver an exceptional user experience.
Maintain and deploy infrastructure supporting internal platforms.
Design features with strong attention to usability, creating clear and enjoyable user interfaces.
Write concise, effective UI copy.
Support marketing initiatives with small coding projects as needed.
Help create and maintain some AI Workflows (no experience needed here, but willing to learn is a must).
About You We’re looking for someone with.
Proven Experience.
Strong full stack skills, including building web applications using React and Ruby on Rails (or Python), working with PostgreSQL, and familiarity with frontend frameworks like Tailwind or Shadcn.
Passion for AI.
Excitement for GenAI, LLMs, and tools like Cursor or Windsurf, with experience leveraging them for rapid development.
Good Design Taste.
An ability to create user-friendly interfaces independently, focusing on clarity and usability.
Ownership.
A self-starter mentality, capable of managing projects and priorities with minimal supervision.
Collaborative Mindset.
A team player who thrives on proactive communication and constructive feedback.
Communication Skills.
Clear and proactive communication skills, essential in a remote environment, with the ability to keep the team informed and aligned.
Pragmatic Approach.
A focus on practical, impactful solutions, avoiding over-engineering or unnecessary debates.
Project Management.
Excellent organizational skills, keeping your to-dos and tickets up to date, and ensuring team awareness of progress and blockers.
This role is more suited for someone that have created entire projects on their own, even if just as a side-projects, than someone that prefers a lot of structure or guidance.
A Typical Week at GrowthX Here’s how you might allocate your time in a typical week.
15% - Meet with the founders to brainstorm features for our internal platform.
10% - Iterate with the founders on paper wireframes to clarify ideas and direction before coding.
10% - Spend time with the Content team to learn their needs and workflows.
30% - Code in React/Shadcn to build the frontend for our internal platform powering our Managing Editors.
25% - Code the backend and database using Ruby on Rails and Postgres to support the frontend.
10% - Update your tasks and communicate project progress in Basecamp.
Competitive Compensation.
Salary range of $ to $ based on experience, plus stock options at fast growing startup.
Remote Flexibility.
Work from wherever you’re most productive.
Ample Time Off.
Unlimited vacation policy, with a recommended minimum of 15 days.
Impactful Work.
Join a team transforming how businesses leverage AI for growth.
Less Meetings, More Async Work.
Autonomy and asynchronous collaboration are prioritized to maximize productivity.